Home / 23,183.15-31,992.37-13,111.21

Finding the Fourth Proportional to 23,183.15, 31,992.37 and 13,111.21

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Solution

The fourth proportional to 23,183.15, 31,992.37 and 13,111.21 is: 18,093.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,183.15 : 31,992.37 = 13,111.21 : x
  2. Step 2: Convert to fraction form
    23,183.15/31,992.37 = 13,111.21/x
  3. Step 3: Cross multiply
    23,183.15x = 31,992.37 × 13,111.21
  4. Step 4: Simplify right side
    23,183.15x = 419,458,615.91
  5. Step 5: Solve for x
    x = 419,458,615.91/23,183.15
  6. Step 6: Final answer
    x = 18,093.26

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Half scale
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Double scale
Find fourth proportional to 23,184.15, 31,993.74 and 13,112.21
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.